Combined dumb-waiter and refrigerator.



PATENTED OCT. 80, 1906 ATOR.

2 SHEETS-SHEET 1.

, H. KELLER. COMBINED DUMB WAITER AND REPRIGER APPLICATION FILED MAY 29, 1906.

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PATENTED OCT. 30, 1906. V

. H. KELLER. COMBINED DUMB WAITER AND REFRIGERATOR.

APPLIUATION FILED MAYZQ 1906.

2 SHEETSSHEET 2.

Iv U111 $71? K3251 THE-NORRIS rzrxns co., wAsmNomu, n. c.

' section of the same on UNITED STATES PATENT OFFICE.

DUMB-WAITER REFRIGERATOR COMPANY, OF

ERIE, PENNSYLVANIA.

COMBINED QUMB-WAITER AND REFRIGERATOR.

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed May 29, 1906. Serial No. 319,371.

To all whom it may concern.-

Be it known that I, HENRY KELLER, a c1 tizen of the United States, residing at Erie,in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in a Combined Dumb-Waiter to the letters of reference marked thereon,

forming part of this specification.

My invention relates to a combined refrigerator and dumb-waiter, and has for its object the construction of a combined refrigerator and dumb-waiter in such 'a manner that the receptacle for the ice is normally directly above the dumb-waiter shelves when in the refrigerator-chamber, but when the dumb waiter shelves are moved upward said ice-receptacle is moved out of the line of traverse of said shelves, and after they have passed upward said ice-receptacle is moved back to its normal position in the dumb-waiter shaft. These and other features of my invention will appear hereinafter and are illustrated in the accompanying drawings, in which Figure 1 is a front view in elevation of a combined refrigerator and dumb-waiter, showing the dumb-waiter door open and the dumb-waiter raised. Fig. 2 is an edgewise view of the same with portions of the case broken away,'showing the manner of operating the ice-receptacle. Fig. 3 is a transverse the line a: :c in Figs. 1 and 2. Fig. 4 is a like view of the same on the line y y in said figures, with the dumbwaiter shelves lowered into the refrigeratorchaniber. Fig. 5 is a sectional view of a portion of my invention on the line Z Z in Fig. 2 to illustrate a portion of the supporting mechanism for the ice-receptacle.

In the drawings illustrating my invention, A is a dumb-waiter case extending up through two or more stories of a building, and B is the floor of the second story thereof. In the lower part of the case A, below the floor B, I have shown a refrigerator-chamber A,

and through one side thereof I make an open- 1 ing into which I fit an ice-receptacle C, which closely fits said opening when in its normal position, as shown by full lines in Figs. 1 and 2. On each end of the ice-receptacle, adjacent to the inner side 0 thereof, I secure rollers c c, and on the lower corners thereof outside of said rollers c c I place two other rollers 0 0 which bear upon the supports a a for the purpose of supporting the rear end of the ice receptacle C.

For supporting the front end of the ice-receptacle O, I preferably secure to the front of the case A, below the floor B, near each side thereof, brackets D D, having shaft-bearings therein, and in these bearings I mount a transverse rock-shaft D. Secured upon this rock-shaft D, inside of the brackets D, are arms (1 d, which extend upward to and are pivotally secured to the front side of the icereceptacle C, thereby securely supporting the same. Upon the end of the shaft D, I secure a counterweight lever d, and upon the free end thereof I place a counterwelght (1 which operates through the shaft D and arms (1 cl to retain the ice-receptacle in its normal position, as shown by full lines in Fig. 2. also provide stays E, of rope or chain, to support the receptacle C, when the same is swung outward, as shown by the broken lines C in Fig. 2 for the purpose of filling the same with ice.

The ice-receptacle C, I preferably construct in the shape of an open-top box, of sheet metal galvanized, or of other sanitary noncorrodible material, having the ends and rear side of open latticework with a pan at the bottom to catch the drip which is carried off through the waste-pipe 0 The exact construction of this ice-receptacle is not material to my invention.

Within the case place a rib or guide a, which extends from the bottom to the top of the dumb-waiter shaft. In the top of the case A, upon suitable supports F, I mount a pulley G, having on the side thereof a smaller drum or pulley H. Over the pulley G a cable G is placed, having secured at one end thereof the dumb-waiter J and at the other a counterweight K. (See Fig. 1.)

In the front of the case A above the floor B there is a door A which when open gives access to the dumb-waiter shaft. Secured to and wrapped around drum H is'an operating rope or cable L, which passes around an idler-pulley L and is preferably secured to the door A This cable L may, however,

A, at each side thereof, I I

be operated by hand, as desired, instead of by the opening of the door A but I prefer to operate the same as shown in the drawin s.

Ihe side frames M of the dumb-waiter are constructed with inclined cams M and M in the fronts thereof for the purpose hereining of the door A after set forth. Between these side frames M there are shelves m, upon which articles which it is desired to place in the refrigerator are placed. At the top and bottom of the side frames M at each side of the dumb-waiter small grooved rollers are placed N, which engage with the ribs or guides a at each side of the dumb-waiter shaft and serve to guide the dumb-waiter and prevent it from swinging laterally in the case A.

Within the refrigerator-chamber A, opposite the ice-receptacle C upon the back of the chamber, are secured rollers 0, (see Figs. 2 and 4,) for the purpose hereinafter set forth.

In operation when it is desired to lower the dumb-waiter into the refrigerator-chamber A it is loaded with such articles as may be desired and sufficient weight placed thereon to overcome the counterweight K when the door A is slowly closed, allowing the dumbwaiter to descend in the shaft until the inclined cam M on the lower end of the side frames thereof contact with the upper rollers c on the ice-receptacle and forces the same outward, as shown by the dotted lines C in Fig. 2. At this time the rear or straight side of the side frames M of the dumb-waiter contacts with the rollers O, which assist the grooved rollers N in preventing the dumbwaiter from being swung backward by the ice-receptacle. As the dumb-waiter passes downward and the lower roller 0 on the icereceptacleC passes over and off of the inclined surface M the counterweight (1 through the arms (1 and d forces the icere ceptacle 0 back to its normal position, as shown by full lines in Fig. 2, during which operation the rear end of the ice-receptacle is supported upon the rollers 0 When it is desired to raise the dumb-waiter, the openthrough the cable L causes the pulley G to rotate in the direction of the arrow in Fig. 1, which raises the dumbwaiter.

Having thus described my invention so as to enable others to construct and use the same, what I claim as new, and desire to secure by Letters Patent of the United States,

1. In a combined refrigerator and dumb waiter the combination of a dumb-waiter shaft, dumb-waiter shelves in said shaft, means to raise and lower said shelves, an icereceptacle in said shaft, means to move said ice-receptacle out of the line of said shaft when said shelves are raised or lowered, and means to return said ice-receptacle into the line of said shaft after the dumb-waiter shelves have passed the plane of said receptacle, substantially as set forth.

2. In a combined refrigerator and dumbwaiter, the combination of a dumb-waiter shaft, dumb-waiter shelves therein, and a horizontally-movable ice-receptacle in said dumb-waiter shaft, substantially as set forth.

3. The combination in a dumb-waiter, of a dumb-waiter shaft, dumbwaiter shelves therein, mechanism adapted to support and operate said shelves, a door in said shaft, and mechanism secured to said door adapted to cause said shelf-supporting mechanism to operate when said door is opened or closed, substantially as set forth.

4. The combination in a dumb-waiter and refrigerator, of a dumb-waiter shaft, dumbwaiter shelves vertically operable in said shaft, an icereceptacle in said shaft pivoted on supports so as to be swung out of said shaft when the dumb-waiter shelves are raised or lowered, and counterweight and lever mechanism adapted to return said icereceptacle into said shaft and retain it therein after said shelves have passed above or below it, substantially as set forth.

5. In a combined dumb-waiter and refrigerator, the combination of a dumb-waiter shaft, dumb-waiter shelves in said shaft, means adapted to support and operate said shelves, cams secured to said shelves, a horizontallymovable ice-receptacle in said shaft adapted to be engaged and moved outward by said cams on said shelves, brackets in said shaft to support said receptacle in the line of traverse of said shelves, lever and weight mechanism adapted to return said ice-recep tacle to its normal position within said shaft after said cams have passed out of engagement therewith, substantially as set forth.

6. In a dumb-waiter the combination of a dumb-waiter shaft, dumb-waiter shelves mounted upon guides therein, a pulley in the upper part of said shaft, a counterweight, a cable, having one end attached to said dumbwaiter shelves and the other attached to said counterweight and operable over said pulley, and means to operate said pulley, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY KELLER.

Witnesses:

H. M. STURGEON, L. G. SKINNER. 

